Commit 4c7f5fec authored Feb 13, 2023 by Yang Ling Committed by Jialin Zhang Feb 13, 2023

MIPS: loongson32: ls1c: Fix hang during startup

stable inclusion
from stable-v5.10.143
commit 586f8c8330b72b316cb9a83695ef1f1e62ac6fec
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0U6

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=586f8c8330b72b316cb9a83695ef1f1e62ac6fec



--------------------------------

[ Upstream commit 35508d24 ]

The RTCCTRL reg of LS1C is obselete.
Writing this reg will cause system hang.

Fixes: 60219c56 ("MIPS: Add RTC support for Loongson1C board")
Signed-off-by: Yang Ling <gnaygnil@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com>
Acked-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>

parent ddc766f1

arch/mips/loongson32/ls1c/board.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -15,7 +15,6 @@ static struct platform_device *ls1c_platform_devices[] __initdata = {
		static int __init ls1c_platform_init(void)
		{
		ls1x_serial_set_uartclk(&ls1x_uart_pdev);
		ls1x_rtc_set_extclk(&ls1x_rtc_pdev);

		return platform_add_devices(ls1c_platform_devices,
		ARRAY_SIZE(ls1c_platform_devices));